package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;
import java.util.stream.Collectors;

@RestController
@RequestMapping("/setmeal")
@Slf4j
 class SetmealController {
    @Resource
    private SetmealService setmealService;
    @Resource
    private SetmealDishService setmealDishService;
    @Resource
    private CategoryService categoryService;

    /**
     * 新增套餐
     * @param setmealDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody SetmealDto setmealDto){
        log.info("套餐信息：{}",setmealDto);
        setmealService.saveWithDish(setmealDto);
        return R.success("套餐保存成功");
    }

    /**
     * 套餐分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        //创建分页构造器
        Page<Setmeal> pageInfo = new Page<>(page,pageSize);
        Page<SetmealDto> setmealDtoPage=new Page<>();
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.like(name!=null,Setmeal::getName,name);
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);
        setmealService.page(pageInfo, queryWrapper);
        //对象拷贝
        BeanUtils.copyProperties(pageInfo,setmealDtoPage,"record");//<>泛型不一样
        List<Setmeal> records=pageInfo.getRecords();
        List<SetmealDto> list=records.stream().map((item)->{
            SetmealDto setmealDto=new SetmealDto();
            BeanUtils.copyProperties(item,setmealDto);
            //分类id
            Long categoryId=item.getCategoryId();
            //根据分类id查询分类对象
            Category category = categoryService.getById(categoryId);
            if(category!=null){
                //分类名称
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());
        setmealDtoPage.setRecords(list);
        return R.success(setmealDtoPage);
    }
    /**
     * 删除套餐
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids){//基本数据类型就可以不加注解 但如果是用数据类型 就需要加注解
        log.info("ids:{}",ids);                           //数组元素顺序固定可以不加注解,list元素顺序不固定不加注解无法获取
        setmealService.removeWithDish(ids);
        return R.success("删除套餐成功");
    }

    /**
     * 根据条件查询对应的套餐数据
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    public R<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Setmeal::getCategoryId,setmeal.getCategoryId());
        queryWrapper.eq(Setmeal::getStatus,setmeal.getStatus());
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);
        List<Setmeal> list = setmealService.list(queryWrapper);
        return R.success(list);
    }
}
